./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8594d8e7-ae1b-4f42-bdf4-3a0a78ac404d/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8594d8e7-ae1b-4f42-bdf4-3a0a78ac404d/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8594d8e7-ae1b-4f42-bdf4-3a0a78ac404d/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8594d8e7-ae1b-4f42-bdf4-3a0a78ac404d/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8594d8e7-ae1b-4f42-bdf4-3a0a78ac404d/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8594d8e7-ae1b-4f42-bdf4-3a0a78ac404d/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash df3ddc93bc6339292c9158119f1fdb949bb8842d ....................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:32:08,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:32:08,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:32:08,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:32:08,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:32:08,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:32:08,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:32:08,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:32:08,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:32:08,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:32:08,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:32:08,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:32:08,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:32:08,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:32:08,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:32:08,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:32:08,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:32:08,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:32:08,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:32:08,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:32:08,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:32:08,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:32:08,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:32:08,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:32:08,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:32:08,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:32:08,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:32:08,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:32:08,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:32:08,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:32:08,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:32:08,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:32:08,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:32:08,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:32:08,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:32:08,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:32:08,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:32:08,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:32:08,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:32:08,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:32:08,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:32:08,329 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8594d8e7-ae1b-4f42-bdf4-3a0a78ac404d/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:32:08,369 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:32:08,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:32:08,371 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:32:08,371 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:32:08,372 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:32:08,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:32:08,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:32:08,373 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:32:08,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:32:08,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:32:08,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:32:08,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:32:08,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:32:08,375 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:32:08,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:32:08,376 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:32:08,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:32:08,376 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:32:08,377 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:32:08,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:32:08,377 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:32:08,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:32:08,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:32:08,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:32:08,378 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:32:08,378 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:32:08,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:32:08,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:32:08,379 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_8594d8e7-ae1b-4f42-bdf4-3a0a78ac404d/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8594d8e7-ae1b-4f42-bdf4-3a0a78ac404d/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df3ddc93bc6339292c9158119f1fdb949bb8842d [2020-11-28 04:32:08,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:32:08,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:32:08,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:32:08,669 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:32:08,670 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:32:08,671 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8594d8e7-ae1b-4f42-bdf4-3a0a78ac404d/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a.c [2020-11-28 04:32:08,773 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8594d8e7-ae1b-4f42-bdf4-3a0a78ac404d/bin/ukojak/data/b0be58fe8/938acac525504dba982c73dee73fa948/FLAGc976b9203 [2020-11-28 04:32:09,246 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:32:09,249 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8594d8e7-ae1b-4f42-bdf4-3a0a78ac404d/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a.c [2020-11-28 04:32:09,260 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8594d8e7-ae1b-4f42-bdf4-3a0a78ac404d/bin/ukojak/data/b0be58fe8/938acac525504dba982c73dee73fa948/FLAGc976b9203 [2020-11-28 04:32:09,636 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8594d8e7-ae1b-4f42-bdf4-3a0a78ac404d/bin/ukojak/data/b0be58fe8/938acac525504dba982c73dee73fa948 [2020-11-28 04:32:09,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:32:09,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:32:09,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:32:09,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:32:09,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:32:09,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:09" (1/1) ... [2020-11-28 04:32:09,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78142e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:09, skipping insertion in model container [2020-11-28 04:32:09,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:09" (1/1) ... [2020-11-28 04:32:09,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:32:09,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:32:09,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:32:09,847 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:32:09,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:32:09,873 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:32:09,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:09 WrapperNode [2020-11-28 04:32:09,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:32:09,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:32:09,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:32:09,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:32:09,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:09" (1/1) ... [2020-11-28 04:32:09,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:09" (1/1) ... [2020-11-28 04:32:09,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:32:09,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:32:09,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:32:09,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:32:09,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:09" (1/1) ... [2020-11-28 04:32:09,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:09" (1/1) ... [2020-11-28 04:32:09,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:09" (1/1) ... [2020-11-28 04:32:09,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:09" (1/1) ... [2020-11-28 04:32:09,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:09" (1/1) ... [2020-11-28 04:32:09,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:09" (1/1) ... [2020-11-28 04:32:09,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:09" (1/1) ... [2020-11-28 04:32:09,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:32:09,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:32:09,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:32:09,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:32:09,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8594d8e7-ae1b-4f42-bdf4-3a0a78ac404d/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:32:09,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:32:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:32:10,194 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:32:10,194 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 04:32:10,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:10 BoogieIcfgContainer [2020-11-28 04:32:10,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:32:10,197 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:32:10,198 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:32:10,208 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:32:10,208 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:10" (1/1) ... [2020-11-28 04:32:10,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:32:10,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:10,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-11-28 04:32:10,265 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-11-28 04:32:10,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:32:10,268 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:10,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:10,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:10,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2020-11-28 04:32:10,549 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2020-11-28 04:32:10,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:32:10,549 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:10,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:10,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:10,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2020-11-28 04:32:10,718 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2020-11-28 04:32:10,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:32:10,718 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:10,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:10,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:10,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2020-11-28 04:32:10,945 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-11-28 04:32:10,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:32:10,945 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:10,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:11,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:11,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2020-11-28 04:32:11,046 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2020-11-28 04:32:11,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:32:11,047 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:11,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:11,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:11,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-11-28 04:32:11,263 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-11-28 04:32:11,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:32:11,264 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:11,309 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:11,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:11,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2020-11-28 04:32:11,375 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-11-28 04:32:11,375 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:32:11,376 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2020-11-28 04:32:11,383 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-28 04:32:11,430 INFO L569 CodeCheckObserver]: Invariant with dag size 8 [2020-11-28 04:32:11,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:32:11 ImpRootNode [2020-11-28 04:32:11,444 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:32:11,448 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:32:11,448 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:32:11,449 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:32:11,449 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:10" (3/4) ... [2020-11-28 04:32:11,455 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:32:11,468 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 04:32:11,468 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 04:32:11,468 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:32:11,521 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8594d8e7-ae1b-4f42-bdf4-3a0a78ac404d/bin/ukojak/witness.graphml [2020-11-28 04:32:11,522 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:32:11,524 INFO L168 Benchmark]: Toolchain (without parser) took 1881.68 ms. Allocated memory is still 115.3 MB. Free memory was 89.0 MB in the beginning and 90.4 MB in the end (delta: -1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:11,526 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 90.2 MB. Free memory was 48.1 MB in the beginning and 48.1 MB in the end (delta: 44.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:11,527 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.57 ms. Allocated memory is still 115.3 MB. Free memory was 88.7 MB in the beginning and 94.0 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:11,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.34 ms. Allocated memory is still 115.3 MB. Free memory was 94.0 MB in the beginning and 92.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:11,530 INFO L168 Benchmark]: Boogie Preprocessor took 17.46 ms. Allocated memory is still 115.3 MB. Free memory was 92.8 MB in the beginning and 91.8 MB in the end (delta: 982.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:11,534 INFO L168 Benchmark]: RCFGBuilder took 275.10 ms. Allocated memory is still 115.3 MB. Free memory was 91.8 MB in the beginning and 82.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:11,537 INFO L168 Benchmark]: CodeCheck took 1246.79 ms. Allocated memory is still 115.3 MB. Free memory was 81.7 MB in the beginning and 93.0 MB in the end (delta: -11.3 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:11,537 INFO L168 Benchmark]: Witness Printer took 73.55 ms. Allocated memory is still 115.3 MB. Free memory was 92.5 MB in the beginning and 90.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:11,541 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 12 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 7, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 224 SDtfs, 322 SDslu, 0 SDs, 0 SdLazy, 1200 SolverSat, 310 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 276 GetRequests, 245 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 413 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 4/5 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: x <= 2147483647 && 0 <= x + 2147483648 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 90.2 MB. Free memory was 48.1 MB in the beginning and 48.1 MB in the end (delta: 44.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 231.57 ms. Allocated memory is still 115.3 MB. Free memory was 88.7 MB in the beginning and 94.0 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.34 ms. Allocated memory is still 115.3 MB. Free memory was 94.0 MB in the beginning and 92.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.46 ms. Allocated memory is still 115.3 MB. Free memory was 92.8 MB in the beginning and 91.8 MB in the end (delta: 982.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 275.10 ms. Allocated memory is still 115.3 MB. Free memory was 91.8 MB in the beginning and 82.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 1246.79 ms. Allocated memory is still 115.3 MB. Free memory was 81.7 MB in the beginning and 93.0 MB in the end (delta: -11.3 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. * Witness Printer took 73.55 ms. Allocated memory is still 115.3 MB. Free memory was 92.5 MB in the beginning and 90.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...